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Meldin Supplier

DuPont Mobility and Materials Vespel® SP-22 ISO Polyimide
Categories: Polymer; Thermoplastic; Polyimide, Thermoplastic; Thermoplastic Polyimide, Graphite Filled
Material Notes: Parts and stock shapes from nominal 40% (wt) graphite filled PI (polyimide) for low coefficient of thermal expansion and high creep resistantance.

Information provided by DuPont. This product line has remained with DuPont after the DuPont-Dow merger.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.65 g/cc0.0596 lb/in³ASTM D 792
Water Absorption 0.14 %0.14 %Immersion 24h; ASTM D 570
 0.42 %0.42 %Immersion 48h,50°C (122°F); ASTM D 570
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell E <= 25<= 25ASTM D 785
Tensile Strength, Ultimate 52.0 MPa7540 psiASTM D 638
 23.0 MPa
@Temperature 260 °C		3340 psi
@Temperature 500 °F		ASTM D 638
Elongation at Break 3.0 %3.0 %ASTM D 638
 2.0 %
@Temperature 260 °C		2.0 %
@Temperature 500 °F		ASTM D 638
Flexural Strength 90.0 MPa13100 psiASTM D 790
 45.0 MPa
@Temperature 260 °C		6530 psi
@Temperature 500 °F		ASTM D 790
Flexural Modulus 4.823 GPa699.5 ksiASTM D 790
 2.756 GPa
@Temperature 260 °C		399.7 ksi
@Temperature 500 °F		ASTM D 790
Izod Impact, Notched 0.277 J/cm0.519 ft-lb/inASTM D 256
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 4.00e+19 ohm-cm4.00e+19 ohm-cmASTM D 257
Surface Resistance 7.00e+11 ohm7.00e+11 ohmASTM D 257
Dielectric Constant  18.51
@Frequency 1e+6 Hz		18.51
@Frequency 1e+6 Hz		ASTM D 150
 24.03
@Frequency 10000 Hz		24.03
@Frequency 10000 Hz		ASTM D 150
 35.02
@Frequency 100 Hz		35.02
@Frequency 100 Hz		ASTM D 150
Dielectric Strength 3.00 kV/mm76.2 kV/in2.0mm (0.08in) sample; short time; ASTM D 149
Dissipation Factor 0.0597
@Frequency 1e+6 Hz		0.0597
@Frequency 1e+6 Hz		ASTM D 150
Comparative Tracking Index 250 - 399 V250 - 399 VIEC 60112
 250 - 399 V250 - 399 V3.0mm; UL 746A
 
Thermal PropertiesMetricEnglishComments
UL RTI, Electrical  130 °C
@Thickness 0.750 mm		266 °F
@Thickness 0.0295 in		UL 746B
 130 °C
@Thickness 1.60 mm		266 °F
@Thickness 0.0630 in		UL 746B
 130 °C
@Thickness 3.00 mm		266 °F
@Thickness 0.118 in		UL 746B
UL RTI, Mechanical with Impact  130 °C
@Thickness 0.750 mm		266 °F
@Thickness 0.0295 in		UL 746B
 130 °C
@Thickness 1.60 mm		266 °F
@Thickness 0.0630 in		UL 746B
 130 °C
@Thickness 3.00 mm		266 °F
@Thickness 0.118 in		UL 746B
UL RTI, Mechanical without Impact  130 °C
@Thickness 0.750 mm		266 °F
@Thickness 0.0295 in		UL 746B
 130 °C
@Thickness 1.60 mm		266 °F
@Thickness 0.0630 in		UL 746B
 130 °C
@Thickness 3.00 mm		266 °F
@Thickness 0.118 in		UL 746B
Flammability, UL94  V-0
@Thickness 0.750 mm		V-0
@Thickness 0.0295 in		IEC 60695-11-10
 V-0
@Thickness 0.750 mm		V-0
@Thickness 0.0295 in		UL94
 V-0
@Thickness 1.60 mm		V-0
@Thickness 0.0630 in		IEC 60695-11-10
 V-0
@Thickness 1.60 mm		V-0
@Thickness 0.0630 in		UL94
 V-0
@Thickness 3.00 mm		V-0
@Thickness 0.118 in		IEC 60695-11-10
 V-0
@Thickness 3.00 mm		V-0
@Thickness 0.118 in		UL94
 
Descriptive Properties
Contains Flame RetardantYes
Heat StabilizedYes
Polymer FamilyPolyimide
Polymer TypePI
Region AvailableAmericas
 Asia/Pacific
 Europe

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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